/Engine/Plugins/Interchange/Runtime/Source/FactoryNodes/Public/InterchangeSkeletalMeshFactoryNode.h
The skeletal mesh thumbnail can have an overlay if the last re-import was geometry only. This thumbnail overlay feature use the metadata to find out if the last import was geometry only.
virtual void AppendAssetRegistryTags ( [TArray](API\Runtime\Core\Containers\TArray)< [FAssetRegistryTag](API\Runtime\CoreUObject\UObject\UObject\FAssetRegistryTag) > & OutTags ) const